Cleaning the Scanning Glass, Roller, and Pad
If there are streaks in the scanned images, or the scanned documents are dirty, it is possible that the scanning glass or rollers are dirty. Periodically clean the parts.
Scratches on the scanning glass may cause spots or streaks on scanned images, as well as feeding errors. If you find a scratch on the scanning glass, contact your local authorized Canon dealer or service representative to have the glass replaced.
- Turn the power switch off, and disconnect the power plug from the power outlet.
- Close the document eject tray extension if it is open.
- Open the upper unit smoothly.
- Wipe any dust off the scanning glass with a cleaning cloth or a clean, dry cloth.
Make sure that you clean scanning glasses, the one on the upper unit and the one on the main unit.
CAUTION
Never spray mild detergent or water directly on the scanning glasses. The spray could penetrate below the glass, and contaminate the light source and lenses.
- Wipe the rollers using a moistened and firmly wrung-out cloth while rotating the rollers.
The rollers are located at the positions indicated in the figure below.
- Remove the pickup roller, feed roller, retard roller, and retard roller cover.
Remove the pickup roller, feed roller, and retard roller before wiping away the dirt. The pad is mounted to the retard roller cover. Wipe away the dirt from the pad once the retard roller cover has been removed from the device.
- Wipe the rollers that you removed using a moistened and firmly wrung-out cloth.
- Wipe away the dirt from the pad mounted to the retard roller cover while removed using a cloth that has been dipped in water and thoroughly wrung.
When wiping the pad, do not apply excessive force. Doing so may damage the pad.
- Replace the rollers that you removed.
- Smoothly close the upper unit.
If the paper jams or double feeds still occur frequently even after cleaning the rollers, roller replacement may be necessary.
